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METRONIX GEOPHYSICS
Magnetotellurics, CSAMT,
Remote Control
Integrated web-server
Remote file access
Linux operating system
Linux® is a registered trademark of L. Torvalds
World, Germany
Metronix
Kocher Str. 3
38120 Braunschweig, Germany
geo-metronix.de
China
BOST Beijing Ohualian Science and Technology LTD
JianCaiCheng ZhongLu 26#, 21st Century Mansion C-3rd Floor
Beijing, China 100096
www.ouhualian.com
India
Toshniwal Brothers (Delhi) Pvt. Ltd.
D-3, Mohit House, SC-II
Mansarovar Garden
New Delhi 110 015, India
Taiwan
All-Star Technology Corporation
1F, # 36, Lane 312, Section 2 ChengGong Road,
Neihu District, Taipei 11467, Taiwan, R.O.C.
www.allstartech.com.tw
Indonesia
PT. Andalan Tunas Mandiri
Jl. Raya Penggilingan Aneka Elok A2/16
Cakung, Jakarta Timur 13940, Indonesia
http://ptandalan.com/
Chile
Proyectos, Consultorías y Representaciones
Héctor Zúñiga R.
Gerente General
Luis Thayer Ojeda Norte 0191, Of. 1204
Providencia. Santiago, Chile
Metronix OpenConcepts
OpenConcepts is our answer against "user outsourcing".
Metronix is a medium sized company in Germany with an excellent engineeringdepartment and a long tradition in geophysics and since twenty-five years alsoin manufacturing and designing of servo drives and computer controlledsystems.
We are working user orientated and use the chance to provide special solutionsto our customers.
After all these years our philosophy is to provide products with open interfaces;we do not try to bind the costumer by making proprietary interfaces. Ourproducts are world class and the relation to our costumers is close - a simplerecipe which does not need some "extra salt"
Electromagnetic Exploration
Electromagnetic exploration – here magnetotellurics MT and transientelectromagnetic TEM – are used for defining targets such as:
• minerals (copper, zinc, ore, iron, etc)
• water (fresh, salt water, water pollution, aquifers, water tables)
• geothermal reservoirs
• oil and gas
• coal
• and everything else which differs in conductivity from its host rock
3D display of
a mining area.
Data recorded with
controlled source.
For local studies in addition CSAMT can be used. Advantages are:
• high resolution data
• no problems with AMT gap (3 kHz to 1 kHz frequency range)
• recordings in noisy area possible (near villages for example)
MT is also being used for regional studies (here 300 km x 300 km, Germany).
MT visualizes the regional geological context down to the crust. Mountainuplifting as well as regional fault systems. Regional fault systems can be zonesof higher seismic activities, where you may avoid to construct water dams orpower plants.
ADU-07e
24-Bit Geophysical EM Measurement System
As in seismics, technological advances in electromagnetic recording systemshave emphasised the requirement for simultaneous multi-channel dataacquisition.
The Multi-Method Network Geophysical Measurement System GMS-07 is theresult of over 35 years of metronix´s experience in the design and manufactureof electromagnetic geophysical instruments. The electric and/or magnetic fieldsensors are connected directly to the ADU-07e (Analog/Digital SignalConditioning Unit), which is the core unit of this system. Multiple ADU-07e unitscan be connected to a network using simple, light-weight and inexpensivenetwork cable or Wireless LAN.
Each ADU-07e can be operated as a stand alone system, in a network or aspart of an array in which each unit is synchronized by its in-built GPS clock.
Hardware
The ADU-07e electronics are housed in a small waterproof box only 8kg inweight. It comprises the complete circuitry for analog signal conditioning, 24 BitA/D conversion and data storage. A very precise GPS-controlled time baseguarantees synchronous recordings even under difficult GPS receptionconditions.
The ADU-07e can be tailored according to the user´s requirements.
So the ADU contains 10 slots which can be equipped with 2 different types ofA/D converter boards. A/D converter Type L is optimized for lower frequencyrecordings in a range from DC up to 1000 Hz whilst the second type H isoptimized for high frequency recordings in a signal range from 1Hz up to250kHz. For instance a broadband standard ADU-07e is equipped with 5 low-frequency and 5 high-frequency A/D converter modules. It is possible to obtainhigh-frequency soundings during running low-frequency recording. Differenttypes of sensors can be connected to the ADU and can even be operated inparallel. Example: A fluxgate sensor is connected for low-frequency soundingand induction coils cover the higher frequency range simultaneously.
ADU-07e
● 12 V battery powered. Only asingle battery is required foreach ADU incl. sensors
● Compact, light-weight,ruggedized and water-proofinstrument design
● Wide operating temperaturerange from -40°C to +60°C
Features
● High data quality due to 24 BitAnalog/Digital conversiontechnology
● Can be operated as a standalone or as a multi-channelnetwork system whenconnecting multiple ADU-07e ina Local Area Network (LAN,WLAN)
● Multiple stand alone systemsare synchronized with GPSclock accuracy
● Compatible with all metronixsensors
● Automatic unattended recordingmode
● Automated system self check ofADU-07e and sensors during setup
● Automatic input offsetcompensation eliminates selfpotential of electrodes
● Realtime display of time seriesand spectra
● Automatic determination of bestsetup of gains and filters on site
Software
The ADU-07e has a built-in web server. All necessary setups to run ameasurement are controlled by the web interface and can be accessed by anyweb browser; no software needs to be installed on your laptop or PDA. Thesoftware MAPROS / ProcMT (free) performs standard and remote referenceprocessing of the time series data using robust algorithms. Online processinginside the ADU-07e with unattended data publishing on the ADU's web server isavailable.
Using an external GPS controlled transmitter the ADU-07e providesCSAMT/CSEMM recordings with real-time stacking.
Cluster MT
Together with the satellite box EFD-07 contiguous EMAP measurements can berealized.
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ADU-07e data sheet
Frequency range DC to 250 kHz
Number of channels 1 up to 10 per ADU-07e
Bands 3 Bands (LF DC-1 kHz ; MF DC-16kHz, HF 1 Hz-250KHz)Sub-bands are created by digital filteringBoth bands can be recorded simultaneously
A/D conversion 24 Bit (max. data rate max. 4096 samples/sec) LF Board24 Bit (max. data rate max. 65,536 samples/sec) MF Board24 Bit (max. data rate 524,288 samples/sec) HF Board
Dynamic range > 130 dB
System controller 32 bit embedded controller, Linux
Storage media Internal μSD card up to 32GB or more, USB devices
Test facilities Automatic power up self test of all important system functions including sensors and display of result on the instrument. Automatic creation of logfile
Calibration Automatic calibration
E-field connector input resistance > 10 MOhm, ODU G32KON-T06QP00-000 (ADU E socket)ODU S22KON-T06MPL0-4000 (E-Field cable plug)
H-field connector input resistance 20 kOhm, socket ODU G32KON-T10QJ00-000 (ADU socket)ODU S22KON-T10MJG0-7000 (H-Field cable plug)
Multipurpose connector (E/H)
input resistance > 10 MOhm (E), 20 kOhm (H); ODU G33KON-T30QF00-000 (ADU socket)ODU S23KOC-T30MFG0-7000 (cable plug)
Network connection standard 100 Mbit Twisted Pair, USB 1.1, 2.0, (wireless/Bluetooth)
Synchronization GPS clock +/- 30ns to satellite reference.Station position is also determined and stored
Interfaces network, magnetometers, E-field lines 2 battery inputs, GPS antenna, USB, wireless, Bluetooth
Case ruggedized, waterproof polycarbonate case
Weight appr. 7.1 kg
External dimensions 400 x 330 x 170 mm
Power consumption appr. 3-10 W (LF); 12-20W HF@ 64kHz up to 524 kHz sample rate
Operating temperature range
-40°C to + 60°C (with flash disk)
Metronix Sensors
Our inductions coils are most famous in the world.
1976 we started a new design with integrated preamplifiers and reduced size.
Today we are offering the first sensors which store their calibration data insidethe coil on a chip. Together with the digital bus interface the coil is recognizedby the data logger and the transfer functions are loaded automatically.
With this option Metronix offers the firstMT system with full auto-detection:
• plug and play of the boards(LF, MF, HF) the system detectsand calibrates the boardsautomatically
• plug and play of the MFS sensors
• automated load of calibration data from the coil
• stable calibration for many years
MFS-06e
Broad Band Induction Coil Magnetometer
The broadband induction coil magnetometer MFS-06e has been developed tomeasure variations of the Earth´s magnetic field, particularly for applications inMagnetotellurics (MT) and Controlled Source Audio Magnetotellurics (CSAMT).It covers a wide frequency range from 0.0001 Hz up to 10 kHz. In spite of itswide bandwidth, the MFS-06e shows outstanding low-noise characteristics,extremely low temperature drift of input offset voltage and offset current and avery stable transfer function over temperature and time.
Metronix takes special care of the initialcalibration of all MFS-06e magneto-meters as part of the ISO9001 certifiedproduction process. Tests havedemonstrated an excellent long timestability of the transfer function.
The integrated calibration facility makesit easy for the user to perform an onlinecalibration or test of the coil.
Noise Level MFS-06
1.0E-06
1.0E-05
1.0E-04
1.0E-03
1.0E-02
1.0E-01
1.0E+00
1.0E+01
1.0E+02
0.0001 0.001 0.01 0.1 1 10 100 1000 10000
Frequency [Hz]
No
ise
Lev
el [
nT/
roo
t(H
z)]
Equivalent Magnetic Field Noise Natural Spectra Low
Technical data:
Frequency range 0.00025 Hz ..... 10 kHz
Frequency bands 0.00025 Hz ..... 500 Hz (chopper on)10 Hz ....10 kHz (chopper off)
Sensor noise 1.1*10-2 nT/√Hz @0.01 Hz1.1*10-4 nT/√Hz @1 Hz1*10-6 nT/√Hz @ 1000 Hz (chopper off)
Output sensitivity 0.2 V/(nT*Hz) f << 4 Hz0.8 V/nT f >> 4 Hzfor exact values refer to individual calibration file
Output voltage range +/- 10V
Function Induction coil with magnetic field feed back
Connector ODU G32KON-T10QJ00-000 (coil socket)ODU S22KON-T10MJG0-7000 (cable plug)
Calibration input sensitivity 4 nT / V
Feedback cut-off frequency 4 Hz
Supply voltage +/- 12V to +/- 15V stabilized and filtered
Supply current +/- 25mA
Case ruggedized, waterproof case
Weight appr. 8.0 kg
External dimensions length 1140 mm, diameter 75mm
Operating temperature range -25°C ..... + 70°C
MFS-07e
High-Frequency Induction Coil Magnetometer
The high-frequency induction coil magnetometer MFS-07e has been developedfor applications in Audio Magnetotellurics (AMT) and Controlled Source AudioMagnetotellurics (CSAMT). Nevertheless, it covers a wide frequency range from0.001 Hz up to 50 kHz and can also be used for standard MT applications. TheMFS-07e shows outstanding low-noise characteristics, very low temperaturedrift of input offset voltage and offset current and a very stable transfer functionover temperature and time.
Noise Level MFS-06
1.0E-07
1.0E-06
1.0E-05
1.0E-04
1.0E-03
1.0E-02
1.0E-01
1.0E+00
1.0E+01
1.0E+02
0.001 0.01 0.1 1 10 100 1000 10000 100000
Frequency [Hz]
No
ise
Le
ve
l [n
T/r
oo
t(H
z)]
Equivalent Magnetic Field Noise Natural Spectra Low
Metronix takes special care of the initialcalibration of all MFS-07e magneto-meters as part of the ISO9000-2000certified production process. Tests havedemonstrated an excellent long
time stability of the transfer function.
The integrated calibration facility makesit easy for the user to perform an onlinecalibration or test of the coil.
Technical data:
Frequency range 0.001 Hz ..... 50 kHz
Frequency bands 0.001 Hz ..... 500 Hz (chopper on)10 Hz ....50 kHz (chopper off)
Sensor noise 3*10-2 nT/√Hz @0.01 Hz3*10-4 nT/√Hz @1 Hz5*10-7 nT/√Hz @ 1000 Hz (chopper off)
Output sensitivity 0.02 V/(nT*Hz) f << 32 Hz0.64 V/nT f >> 32 Hzfor exact values refer to individual calibration file
Output voltage range +/- 10V
Function Induction coil with magnetic field feed back
Connector ODU G32KON-T10QJ00-000 (coil socket)ODU S22KON-T10MJG0-7000 (cable plug)
Calibration input sensitivity 1.6 nT / V
Feedback cut-off frequency 32 Hz
Supply voltage +/- 12V to +/- 15V stabilized and filtered
Supply current +/- 25mA
Case ruggedized, waterproof case
Weight appr. 5.5 kg
External dimensions length 700 mm, diameter 75mm
Operating temperature range -25°C ..... + 70°C
SHFT-02e
Super-High-Frequency Triple
The Super High-Frequency induction coil Triple SHFT-02e has been developedfor applications in Audio Magnetotellurics (AMT), Radio Magnetotellurics (RMT)and Controlled Source Magnetotellurics (CSMT). It covers a frequency rangefrom 1 kHz up to more than 300 kHz.. The SHFT-02e shows outstanding low-noise characteristics, and a stable transfer function over temperature and time.
Only one SHFT-02e is required tomeasure the magnetic field variations in3 orthogonal axis. The sensors and itselectronics are enclosed in a shockresistant plastic case. The SHFT-02e isconnected to the metronix ADU-07 datalogger (or any other custom electronics)by a cable of up to 10 m length. Ultralow noise preamplifier are making thissensor superior to others.
Technical data:
Frequency range 1 kHz ..... 300 kHz
Frequency bands 1 kHz ..... 300 kHz (chopper off)n/a (chopper on)
Sensor noise 5*10-5 nT/√Hz @ 1 kHz8*10-6 nT/√Hz @ 10 kHz6*10-6 nT/√Hz @ 100 kHz
Output sensitivity 0.05 V/ nT f > 1kHz
for exact values refer to individual calibration file
Output voltage range +/- 10V
Function Induction coil with current amplifier
Connector 17 pole M23 connector
Supply voltage +/- 12V to +/- 18V internally stabilized and filtered
Supply current +/- 60 mA
Case ruggedized, waterproof
Weight appr. 5.5 kg
External dimensions, without tripod 170 x 190 x 170 mm (LxWxH)
Operating temperature range -25°C ..... + 60°C
FGS-03e
Low Noise Fluxgate
The FGS-03e is a low noise 3-axis fluxgate sensor. It extends the frequencyrange for MT measurements down to DC. The sensor core unit is a BartingtonMag-03. The FGS-03e also provides automatic sensor detection by ADU-07e-
For lower frequencies all transferfunctions are linear.This sensor is designed for crustalstudies where periods of 10,000seconds and more are needed.
Recording time for those periods arethree to eight weeks depending on thedata quality (magnetic activity andexternal interferences by man madenoise).
Typical frequency dependent ampl.:
FGS-03 Fluxgate
Technical data, models L100 and L70:
Frequency range DC ..... 3 kHzDC – 30 sec for MT measurements
Sensor noise < 0.006 nT √Hz @ 1Hz
Output sensitivity 0.1 mV/nT (model L100)0.143 mV/nT (model L70)
Orthogonality error < 0.5°
Output voltage range ± 10V
Measuring range ± 100,000 nT (model L100), ± 70,000 nT (model L70)
Connector ODU G32KON-T10QJ00-000 (FluxGate socket)ODU S22KON-T10MJG0-7000 (cable plug)
Offset temperature coefficient ± 0.1 nT / °C
Offset error ± 5 nT
Supply voltage ± 12V to ± 15V stabilized and filtered
Supply current +26mA, -6mA (+1.4mA per 100μT for each axis)
Case ruggedized, waterproof case
Weight approx. 3 kg
External dimensions length 300 mm, Ø 75mm
Operating temperature range -40°C ..... + 70°C
Crustal Studies, Plate Tectonics, Seismic Risks
ADU-07e MFS-06e FGS-03e
The MFS-06e coils are designed to work from 10 kHz down to 4096 s.
The FGS-03e fluxgate is designed for periods from 100 s to 100,000 s.
If you do not focus on AMT data with many recordings and sites per day, this isthe ideal combination for deep studies. Both – coils and fluxgate – can beoperated simultaneously.
In most cases a fluxgate is not needed if your studies are limited to 10 km(conductive environment) or 200 km (resistive environment).
Geothermal - Hydrothermal
Geothermal exploration needs depths around 3-5 km in order to resolve thereservoir and possible structures supplying the water.
Hydrothermal structures are more shallow and used for hot water supply andheating locally. CSAMT may be used here
The cross section shows several fault zones (F1, F2, F3); showing higherconductivities related to water intrusion.
At the drill site a channel becomes visible which is connected to a mountainarea North of the profile.
A low temperature (65°C) reservoir was found.
ADU-07e MFS-07e SHFT-02e
The MFS-07e coils are designed to work from 50 kHz down to 1000 s.
The SHFT-02e coil triplet is designed to work from 400 kHz down to 1 kHz.
This system is focusing on AMT data and CSAMT
Water Pollution
One of the most upcoming issues is the exploration and determination of freshwater.
High frequency MT can be used to determine fresh and salt water boundaries atcoastline (salt water intrusion) as well as polluted areas from fresh water areas(waste deposit leakage).
HF measurements in additions are used at construction sites.
Shown is the conductivity at different depths, according to the frequencies of20 kHz and 160 kHz.
Polluted water appears in general more conductive then fresh water.
already sold out .....
... please watch the new generation ....
AMT 793 (1979)
